Medical examiner: Harvard student found in harbor died from accidental drowning

Updated at 5 p.m. ET: A Harvard Business School student whose body was found in a harbor near a Portland, Maine, pub where he was last seen drinking died from accidental drowning, the state medical examiner's office said Wednesday.

Nathan Bihlmaier, 31, had been celebrating his impending graduation with friends at the waterfront pub Saturday night before he disappeared, according to NBC affiliate WHDH.com.

He was visibly intoxicated and had been asked to leave the bar, WHDH.com reported. He called friends a short time later, and then was never heard from again.

“He was asked to leave [Rí Rá's Irish Pub and Restaurant] about 12:20 in the morning for having a little bit too much to drink. At that point he left the bar very cooperative, there were no altercations,” Portland's police chief, Michael Sauschuck, said.

Police are unsure how Bihlmaier wound up in the water and are hoping surveillance video will shed some light on the matter.

Bihlmaier, a native of Osborne, Kan., and a University of Kansas graduate, leaves behind a wife pregnant with their first child. He was scheduled to graduate from Harvard Business School on Thursday.